Abstract [en]

The focus today is on self-driving vehicles, more and more in the automotive industry are developing and researching the subject. One piece of the subject is adaptive cruise control that is used to avoid and reduce collisions between objects during convoy driving. This is accomplished by calculating distances up to 250m with a long-distance sensor and adjusting the throttle and braking system.

The report addresses two types of sensors capable of measuring longer distances, radar sensors using radio waves and lidar sensors using lasers. The sensors will be the basis for this work. A literature review of existing research in the subject shows that differences between the sensors exist and that they have their advantages and disadvantages. Where the sensors differentiate them is the resolution of the object and the weather conditions, which can determine which result you are aiming for. In order to find out what the market has to offer, a comparative study was conducted. Where a few sensors were selected for comparison and presentation. Where the block diagram indicates that there are differences between radar and lidar of the system structure. The differences are at the component level because they use different techniques. An overall block diagram of the system is presented and a proposal for an architecture is presented with a more specific block diagram.